1 files changed, 183 insertions, 0 deletions
diff --git a/gr-uhd/lib/uhd_single_usrp_sink.cc b/gr-uhd/lib/uhd_single_usrp_sink.cc
new file mode 100644
index 000000000..622f506b5
--- /dev/null
+++ b/gr-uhd/lib/uhd_single_usrp_sink.cc
@@ -0,0 +1,183 @@
+/*
+ * Copyright 2010 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <uhd_single_usrp_sink.h>
+#include <gr_io_signature.h>
+#include <stdexcept>
+
+/***********************************************************************
+ * UHD Single USRP Sink
+ **********************************************************************/
+uhd_single_usrp_sink::uhd_single_usrp_sink(gr_io_signature_sptr sig)
+:gr_sync_block("uhd single usrp sink", sig, gr_make_io_signature(0, 0, 0)){
+    /* NOP */
+}
+
+/***********************************************************************
+ * UHD Single USRP Sink Impl
+ **********************************************************************/
+class uhd_single_usrp_sink_impl : public uhd_single_usrp_sink{
+public:
+    uhd_single_usrp_sink_impl(
+        const std::string &device_addr,
+        const uhd::io_type_t &io_type,
+        size_t num_channels
+    ):
+        uhd_single_usrp_sink(gr_make_io_signature(
+            num_channels, num_channels, io_type.size
+        )),
+        _type(io_type),
+        _nchan(num_channels)
+    {
+        _dev = uhd::usrp::single_usrp::make(device_addr);
+    }
+
+    void set_subdev_spec(const std::string &spec){
+        return _dev->set_tx_subdev_spec(spec);
+    }
+
+    void set_samp_rate(double rate){
+        _dev->set_tx_rate(rate);
+    }
+
+    double get_samp_rate(void){
+        return _dev->get_tx_rate();
+    }
+
+    uhd::tune_result_t set_center_freq(
+        const uhd::tune_request_t tune_request, size_t chan
+    ){
+        return _dev->set_tx_freq(tune_request, chan);
+    }
+
+    uhd::freq_range_t get_freq_range(size_t chan){
+        return _dev->get_tx_freq_range(chan);
+    }
+
+    void set_gain(float gain, size_t chan){
+        return _dev->set_tx_gain(gain, chan);
+    }
+
+    float get_gain(size_t chan){
+        return _dev->get_tx_gain(chan);
+    }
+
+    uhd::gain_range_t get_gain_range(size_t chan){
+        return _dev->get_tx_gain_range(chan);
+    }
+
+    void set_antenna(const std::string &ant, size_t chan){
+        return _dev->set_tx_antenna(ant, chan);
+    }
+
+    std::string get_antenna(size_t chan){
+        return _dev->get_tx_antenna(chan);
+    }
+
+    std::vector<std::string> get_antennas(size_t chan){
+        return _dev->get_tx_antennas(chan);
+    }
+
+    void set_bandwidth(double bandwidth, size_t chan){
+        return _dev->set_tx_bandwidth(bandwidth, chan);
+    }
+
+    void set_clock_config(const uhd::clock_config_t &clock_config){
+        return _dev->set_clock_config(clock_config);
+    }
+
+    uhd::time_spec_t get_time_now(void){
+        return _dev->get_time_now();
+    }
+
+    void set_time_now(const uhd::time_spec_t &time_spec){
+        return _dev->set_time_now(time_spec);
+    }
+
+    void set_time_next_pps(const uhd::time_spec_t &time_spec){
+        return _dev->set_time_next_pps(time_spec);
+    }
+
+    uhd::usrp::single_usrp::sptr get_device(void){
+        return _dev;
+    }
+
+/***********************************************************************
+ * Work
+ **********************************************************************/
+    int work(
+        int noutput_items,
+        gr_vector_const_void_star &input_items,
+        gr_vector_void_star &output_items
+    ){
+        uhd::tx_metadata_t metadata;
+        metadata.start_of_burst = true;
+
+        return _dev->get_device()->send(
+            input_items, noutput_items, metadata,
+            _type, uhd::device::SEND_MODE_FULL_BUFF
+        );
+    }
+
+    //Send an empty start-of-burst packet to begin streaming.
+    //This is not necessary since all packets are marked SOB.
+    bool start(void){
+        uhd::tx_metadata_t metadata;
+        metadata.start_of_burst = true;
+
+        _dev->get_device()->send(
+            gr_vector_const_void_star(_nchan), 0, metadata,
+            _type, uhd::device::SEND_MODE_ONE_PACKET
+        );
+        return true;
+    }
+
+    //Send an empty end-of-burst packet to end streaming.
+    //Ending the burst avoids an underflow error on stop.
+    bool stop(void){
+        uhd::tx_metadata_t metadata;
+        metadata.end_of_burst = true;
+
+        _dev->get_device()->send(
+            gr_vector_const_void_star(_nchan), 0, metadata,
+            _type, uhd::device::SEND_MODE_ONE_PACKET
+        );
+        return true;
+    }
+
+protected:
+    uhd::usrp::single_usrp::sptr _dev;
+    const uhd::io_type_t _type;
+    size_t _nchan;
+};
+
+/***********************************************************************
+ * Make UHD Single USRP Sink
+ **********************************************************************/
+boost::shared_ptr<uhd_single_usrp_sink> uhd_make_single_usrp_sink(
+    const std::string &device_addr,
+    const uhd::io_type_t::tid_t &io_type,
+    size_t num_channels
+){
+    return boost::shared_ptr<uhd_single_usrp_sink>(
+        new uhd_single_usrp_sink_impl(device_addr, io_type, num_channels)
+    );
+}